BlackRock integrates Chronicle verification layer into tokenized BUIDL fund

Analyst at a desk with a monitor showing live on-chain attestations for a tokenized BUIDL fund and Chronicle verification.

BlackRock has added Chronicle Labs’ Proof of Asset verification layer to its tokenized BUIDL fund, a move that shifts the product from periodic attestations toward continuous, cryptographically verifiable asset reporting. The integration is designed to provide near-real-time visibility into the fund’s underlying holdings and to create a public, tamper-evident audit trail for institutional users.